How to access gridview cell values on client side
In this article I will be discussing how you can use client side javascript to access values in specified row and column of GridView control without doing any post back. I have discussed in my previous articles about highlighting rows and raising click event in selected row of grid view control, ref to How to highlight gridview row when row is selected and How to raise gridview server side event
The technique to access cell values will build upon the technique that we
used for highlighting rows and raising server side event. You can refer to same
code from those articles to see how client side onclick
event was
handled for each selected row. Javascript code in those examples did not deal
with cell values. But there are cases when you need to check what values you
have in various cells of the grid view and make decision on client side. For
example if a user enters a data in some cell but you need to validate it against
value in some other cell or combination of cells, you may have been doing a post
back and then doing the checks and failing user attempt if something was wrong
with the data. But by using this technique you can avoid the post back.